Improvement in potato-diggers



- 2 Sheets-Sheet '1. 0. DARLING.

Pot'a to Digger. .N0. 1O7',229. Patented, Sept. 13, 1870.

N PETERS, PHOTO-LITHOGRAPHE. WASHNG'TON. D. C.

2 SheetsSheet 2.

G.- DARLING1.

Potato Digger. -No.107,229. f Patented Sap-13.13, 1870.

NJETERS. PHDTO-UTHDGRAPHER. WASHINGTON. D C.

' hailed swag with dtfiinr.

000K DARLING, or UJTIOA, NEWIYIORK.

Letters Patent No. 107,229, dated September 13, 1870.

i The Schedule referred to in these Letters Patent and making part of the same work is two-fold; the first, to loosen the ground in connection with the potatoes, and the second following after to rake them out, and leave them on the surface.

In the annexed drawing- Figures 1 and 2, each represent perspective elevation of the entire machine.

'. Figure 2, being a front view, is designed especially to show the shares or blades (rand b, which pass under the surface on either side of the row, loosening up the whole mass.

Fig. l is a rear view, exhibiting the revolving raker G, which following in the rear of the shares, and l1aving a quik circular motion,;its teeth, 1 2 3 4, thoroughly stir the ground previously loosened by the shares, raking out the potatoes in a manner not unlike the work offlle hand by the use of the hoe.

The wooden frame (I is sufficiently shown in the drawing.

The metalrpla-te e is lapped over the frame, and, I coming down on each side, thelower edges are turned inward to receive the shares which are riveted to the plate, as seen at 7rh.

There is also a bent bracing-rod, a portion of which is seen at W, (fig. 2,) passing from one of these plates to the other, and secured at each side,'to prevent the springing of these plates.

Screws, 9, on each side, hold the plate to the frame. These screws, being loosened, the plate with the The machinery designed to perfornfthe desired "shares attached is raised, or lowered as may be desired.

The shares are thin, narrow and flat, with curved front edges; the heels, as at t', are not in contact with I each other, but space is left for the earth, vines, or

weeds to pass, and one is a little in rear of the other, 7

yet the extreme points k'k are opposite each other, making one a little shorter than the other.

The revolving raker, inthe rear, is separately-shown in fig. 3. It is attached to the beam L of the cal"- riage-frame by means of the block 'm,'the latter lying immediately in rear of this beam, and is bolted to it by the thorough-bolts n 0.

- The raker revolves around itsshaft P, which, passing loosely through the block on, holds the raker by means of the thimble and set-screw y, upon its lower end.

zontal shaft to.

This-horizontal shaft has also the spur-wheel V,

fig. 2, which connects with a wheel on the main wheel shaft of thecarriage. Revolvihg motion is thus communicated to the raker by the movement of the carriage.

The remainder of the arrangement of the machinery and carriage is sufficiently shown in the drawing.

I claim as new and of'my invention- A potato-digger, constructed as described, combin- K ing the shares a b, as described, for loosening up the ground and the potatoes, as described, and the revolving rakerin the rear for further stirring the ground and raking out the potatoes, as descgibed, the whole being constructed, arranged, and combined substantially as herein-set forth.

. Y COOK DARLIN Witnesses:

WILLIAM BAKER,

HENRY BARNUM.

The raker being thus aflixed, the pinion .S is brought in connection with the wheel t, on the hori- 

